Answer:
140
Step-by-step explanation:
The sum of one interior angle and one exterior angle is 180
180-40=140 so an interior angle of the regular polygon would be equal to 140
Here t is constant only x and y are variables so it reduces to
dy/ty-y^2 = 1/t^2(dx)
just solve it taking t as constant.
hope this helps
R. Earth=6 371 km=6 371 000 m
6 371 000=6.371×10^6
Hope this helped!
17. 2x<16 x=7 or lower
All I can help you with is #17,
sorry that I can't answer the other 3.
I hope this helped! :-)
Ages of Dan and Cary are 29 and 33 respectively.
<u>Step-by-step explanation:</u>
Step 1:
Form equations out of the given details. Let the age of Dan be x, then age of Cary is x + 4.
In 7 years, sum of their ages = 76
⇒ (x + 7) + (x + 4 + 7) = 76
⇒ 2x + 18 = 76
⇒ 2x = 58
⇒ x = 29
Step 2:
Calculate age of Cary.
⇒ x + 4 = 33